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Finding the Fourth Proportional to 3,390.99, 5,074.69 and 2,074.17

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Solution

The fourth proportional to 3,390.99, 5,074.69 and 2,074.17 is: 3,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.99 : 5,074.69 = 2,074.17 : x
  2. Step 2: Convert to fraction form
    3,390.99/5,074.69 = 2,074.17/x
  3. Step 3: Cross multiply
    3,390.99x = 5,074.69 × 2,074.17
  4. Step 4: Simplify right side
    3,390.99x = 10,525,769.76
  5. Step 5: Solve for x
    x = 10,525,769.76/3,390.99
  6. Step 6: Final answer
    x = 3,104.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.